Evidence of the Nano-sized Si Microstructure of Porous Si From
Scanning Tunneling Microscopy

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	WENG Yumin
	YANG Xinju
	CHEN Yufeng
	ZONG Xiangfu

关键词 ： 36.40.+d, 74.50.+r, 78.55.-m

Abstract： Scanning tunneling microscopy was used to observe the morphological feature of luminescent porous Si Results show that the surface of porous Si consists of randomly distributed nano-sized Si grains, which may be Si clusters. No clear interface was found between the grains. Its microstructure looks like a sponge. Visible photoluminescence in porous Si is most likely due to the carrier confinement in this microstructure.

Key words： 36.40.+d 74.50.+r 78.55.-m

出版日期: 1994-06-01

:	36.40.+d
	74.50.+r	(Tunneling phenomena; Josephson effects)
	78.55.-m	(Photoluminescence, properties and materials)

引用本文:

WENG Yumin;YANG Xinju;CHEN Yufeng;ZONG Xiangfu. Evidence of the Nano-sized Si Microstructure of Porous Si From Scanning Tunneling Microscopy [J]. 中国物理快报, 1994, 11(6): 390-392.
WENG Yumin, YANG Xinju, CHEN Yufeng, ZONG Xiangfu. Evidence of the Nano-sized Si Microstructure of Porous Si From Scanning Tunneling Microscopy . Chin. Phys. Lett., 1994, 11(6): 390-392.

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https://cpl.iphy.ac.cn/CN/ 或 https://cpl.iphy.ac.cn/CN/Y1994/V11/I6/390